VOCS waste gas treatment device

Abstract

The utility model discloses a VOCS waste gas treatment device, which comprises a waste gas tank, a gas inlet cone box, a delivery pipe, a dispersing pipe, a gas dispersing hole, a filter element assembly, a gas dispersing ring and a circulating assembly, the gas inlet cone box is fixedly arranged at the inner top of the waste gas tank, and the top of the delivery pipe is fixedly arranged at the bottom of the gas inlet cone box. VOCS waste gas enters from the upper inlet pipe, the VOCS waste gas enters the air inlet cone box, solid particles of the VOCS waste gas are intercepted in the coarse particle intercepting layer and the fine particle intercepting layer, and the VOCS waste gas is dispersed from the air dispersing holes of the dispersing pipe; the VOCS waste gas passes through the ceramic particle layer, the zeolite particle layer, the particle active carbon layer, the fiber filter material layer and the filter cloth, so that harmful substances in the VOCS waste gas are effectively filtered out, and atmospheric pollution is avoided; the VOCS waste gas in the circulating pipe enters the inner bottom of the waste gas tank through the circulating fan, and the VOCS waste gas is filtered again through the ceramic particle layer, the zeolite particle layer, the granular activated carbon layer and the fiber filtering material layer until filtering is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to VOCs waste gas treatment technical field especially relates to a VOCs waste gas treatment device. BACKGROUND

[0002] Volatile organic compounds (VOCs) waste gas treatment is an important issue in the field of environmental protection, especially in the chemical, pharmaceutical, printing and other industries, VOCs emissions not only cause serious pollution to the atmospheric environment, but also have adverse effects on human health. In order to cope with this challenge, various VOCs waste gas treatment devices have emerged. However, the existing VOCs waste gas treatment devices have exposed many shortcomings in practical application, which not only limits their treatment effect, but also hinders the sustainable development of related industries to some extent.

[0003] Most VOCs waste gas treatment devices use adsorption, catalytic combustion, biodegradation and other methods to purify waste gas. Although these technologies can reduce VOCs emissions to some extent, they generally have the problem of low filtration efficiency. Especially when dealing with high concentration and complex component VOCs waste gas, the purification effect of existing devices is often unsatisfactory. For example, although activated carbon adsorption method can effectively remove part of VOCs, due to the limited saturation capacity of adsorbent, once it exceeds the adsorption limit, it cannot continue to play a role, resulting in a sharp decline in waste gas treatment efficiency. In addition, the regeneration process of adsorbent is complex and costly, which further affects its economic efficiency and feasibility in practical application.

[0004] The existing VOCs waste gas treatment devices are difficult to meet the emission standards after treatment. Many devices do not fully consider the change of VOCs concentration under different working conditions during design, resulting in that the treated waste gas still contains high concentration of harmful substances, which cannot meet the strict emission standards. This not only violates the requirements of environmental protection regulations, but also may cause legal consequences such as fines to enterprises. At the same time, unqualified waste gas emission will also have negative impact on the surrounding environment and residents' life, and damage the social image of enterprises.

[0005] The existing VOCs waste gas treatment devices lack effective recycling mechanism. In actual operation process, the waste gas that is not completely treated is usually directly discharged into the atmosphere, which not only wastes resources, but also increases the risk of environmental pollution. In contrast, if this part of waste gas can be introduced into the treatment system again through multiple cycle treatment until the emission standard is reached, not only the efficiency of waste gas treatment can be greatly improved, but also the maximum utilization of resources can be realized. However, the existing technical solutions are obviously insufficient in this respect, lacking effective backflow design and technical support.

[0006] The existing VOCs waste gas treatment device also has great problems in operation cost and maintenance. On the one hand, many devices need to replace expensive consumables such as catalyst, adsorbent and the like regularly, which undoubtedly increases the operation cost of enterprises; on the other hand, the complex equipment structure and operation process make the daily maintenance very difficult, once a fault occurs, the maintenance cycle is long and the cost is high, which seriously affects the continuity and stability of production.

[0007] Therefore, how to provide a VOCs waste gas treatment device is a problem to be solved by those skilled in the art. Utility model content

[0008] One purpose of the utility model is to provide a VOCs waste gas treatment device, the utility model passes from the upper inlet pipe, VOCs waste gas enters the inlet cone box, VOCs waste gas is intercepted solid particulate matter in coarse particle interception layer and fine particle interception layer, VOCs waste gas is scattered from the air dispersing hole of dispersion pipe again;VOCs waste gas is effectively filtered by ceramic particle layer, zeolite particle layer, granular activated carbon layer, fiber filter material layer and filter cloth, to avoid atmospheric pollution;The circulating fan makes the VOCs waste gas in the circulating pipe enter the inner bottom of the waste gas tank, and the VOCs waste gas is filtered again by ceramic particle layer, zeolite particle layer, granular activated carbon layer and fiber filter material layer until the filtering is completed.

[0009] According to the VOCs waste gas treatment device provided by the utility model, the VOCs waste gas treatment device comprises a waste gas tank, an inlet cone box, a conveying pipe, a dispersion pipe, an air dispersing hole, a filter element assembly, an air dispersing ring and a circulating assembly, wherein the inlet cone box is fixedly installed on the inner top of the waste gas tank, the top of the conveying pipe is fixedly installed on the bottom of the inlet cone box, the dispersion pipe is fixedly installed on the bottom of the conveying pipe, the air dispersing hole is formed in the dispersion pipe, the filter element assembly is fixedly installed in the inlet cone box, the air dispersing ring is fixedly installed on the top of the waste gas tank, and the top of the circulating assembly is fixedly installed on the air dispersing ring.

[0010] Further, the top of the inlet cone box is fixedly provided with an upper inlet pipe, the top of the upper inlet pipe extends out of the top of the waste gas tank, the bottom of the inlet cone box is fixedly provided with a lower inlet pipe, and the bottom of the lower inlet pipe is fixedly installed on the top of the conveying pipe.

[0011] Further, the inside of the inlet cone box is fixedly provided with a coarse particle interception layer, the inside of the inlet cone box is fixedly provided with a fine particle interception layer, and the coarse particle interception layer is located directly below the fine particle interception layer.

[0012] Further, it also comprises a flange, and the flange is fixedly installed on the end of the upper inlet pipe, the lower inlet pipe and the conveying pipe.

[0013] Further, the filter core assembly comprises a first net rack plate, a ceramic particle layer, a zeolite particle layer, a granular activated carbon layer and a fiber filter material layer, wherein the first net rack plate is fixedly installed on the inner bottom of the waste gas tank, the ceramic particle layer is fixedly installed above the first net rack plate, the zeolite particle layer is fixedly installed above the ceramic particle layer, the granular activated carbon layer is fixedly installed above the zeolite particle layer, and the fiber filter material layer is fixedly installed above the granular activated carbon layer.

[0014] Further, the filter core assembly further comprises filter cloth and a second net rack plate, the filter cloth is located between the ceramic particle layer, the zeolite particle layer, the granular activated carbon layer and the fiber filter material layer, and the second net rack plate is fixedly installed on the inner top of the waste gas tank and located above the fiber filter material layer.

[0015] Further, the air dispersing ring is composed of a branch pipe, a ring pipe and an air outlet pipe, one end of the branch pipe is fixedly installed on the top of the waste gas tank, the ring pipe is fixedly installed on the other end of the branch pipe, and the air outlet pipe is fixedly installed on the ring pipe.

[0016] Further, the circulating assembly comprises a first electric valve, a circulating pipe, a second electric valve and a circulating fan, wherein the first electric valve is fixedly installed on the end of the air outlet pipe away from the ring pipe, the top of the circulating pipe is fixedly installed on the air outlet pipe, the bottom of the circulating pipe is fixedly installed on the bottom of the waste gas tank, the second electric valve is fixedly installed on the circulating pipe, one end of the circulating fan is fixedly installed on the circulating pipe, and the other end of the circulating fan is fixedly installed on the circulating pipe.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model discloses a waste gas tank, which comprises a waste gas tank body, a first net rack plate, a ceramic particle layer, a zeolite particle layer, a granular activated carbon layer, a fiber filter material layer, a filter cloth, a second net rack plate, a branch pipe, a ring pipe, an air outlet pipe, a first electric valve, a circulating pipe, a second electric valve and a circulating fan. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0020] Fig. 1 The utility model provides a kind of overall structure schematic view of VOCS waste gas treatment device;

[0021] Fig. 2 The utility model provides a kind of cross section view of the gas inlet cone box of VOCS waste gas treatment device;

[0022] Fig. 3 The utility model provides a kind of cross section view of the dispersion pipe of VOCS waste gas treatment device.

[0023] In the drawing: 1, waste gas tank;2, gas inlet cone box;2.1, upper inlet pipe;2.2, lower inlet pipe;2.3, coarse particle interception layer;2.4, fine particle interception layer;3, conveying pipe;4, dispersion pipe;5, air diffuser hole;6, filter core assembly;6.1, first net rack plate;6.2, ceramic particle layer;6.3, zeolite particle layer;6.4, granular activated carbon layer;6.5, fiber filter material layer;6.6, filter cloth;6.7, second net rack plate;7, air diffuser ring;7.1, branch pipe;7.2, annular pipe;7.3, outlet pipe;8, circulating assembly;8.1, first electric valve;8.2, circulating pipe;8.3, second electric valve;8.4, circulating fan;9, flange. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in connection with the drawings. These drawings are all simplified schematic view, just with schematic way to show the basic structure of the utility model, so it just shows the structure related to the utility model.

[0025] Please refer to Figs. 1 to 3 The utility model provides a kind of VOCS waste gas treatment device, including waste gas tank 1, gas inlet cone box 2, conveying pipe 3, dispersion pipe 4, air diffuser hole 5, filter core assembly 6, air diffuser ring 7 and circulating assembly 8, wherein, gas inlet cone box 2 is fixedly installed at the inner top of waste gas tank 1, the top of conveying pipe 3 is fixedly installed at the bottom of gas inlet cone box 2, dispersion pipe 4 is fixedly installed at the bottom of conveying pipe 3, air diffuser hole 5 is set up on dispersion pipe 4, filter core assembly 6 is fixedly installed at the inside of gas inlet cone box 2, air diffuser ring 7 is fixedly installed at the top of waste gas tank 1, the top of circulating assembly 8 is fixedly installed on air diffuser ring 7, and the bottom of circulating assembly 8 is fixedly installed at the bottom of waste gas tank 1.

[0026] Specifically, the top of the inlet cone box 2 is fixedly provided with an upper inlet pipe 2.1, the top of the upper inlet pipe 2.1 extends out of the top of the exhaust tank 1, the bottom of the inlet cone box 2 is fixedly provided with a lower inlet pipe 2.2, the bottom of the lower inlet pipe 2.2 is fixedly installed on the top of the conveying pipe 3, the inside of the inlet cone box 2 is fixedly provided with a coarse particle interception layer 2.3, the inside of the inlet cone box 2 is fixedly provided with a fine particle interception layer 2.4, the coarse particle interception layer 2.3 is located directly below the fine particle interception layer 2.4, the coarse particle interception layer 2.3 and the fine particle interception layer 2.4 are used for intercepting particulate matter, and further comprising a flange 9, the flange 9 is fixedly installed on the end of the upper inlet pipe 2.1, the lower inlet pipe 2.2 and the conveying pipe 3.

[0027] More specifically, the filter core assembly 6 comprises a first net rack plate 6.1, a ceramic particle layer 6.2, a zeolite particle layer 6.3, a granular activated carbon layer 6.4 and a fiber filter material layer 6.5, wherein the first net rack plate 6.1 is fixedly installed on the inner bottom of the exhaust tank 1, the ceramic particle layer 6.2 is fixedly installed directly above the first net rack plate 6.1, the zeolite particle layer 6.3 is fixedly installed directly above the ceramic particle layer 6.2, the granular activated carbon layer 6.4 is fixedly installed directly above the zeolite particle layer 6.3, the fiber filter material layer 6.5 is fixedly installed directly above the granular activated carbon layer 6.4, the ceramic particle layer 6.2, the zeolite particle layer 6.3, the granular activated carbon layer 6.4 and the fiber filter material layer 6.5 are used for filtering VOCS exhaust gas, and the filter core assembly 6 further comprises a filter cloth 6.6 and a second net rack plate 6.7, the filter cloth 6.6 is located between the ceramic particle layer 6.2, the zeolite particle layer 6.3, the granular activated carbon layer 6.4 and the fiber filter material layer 6.5, and the second net rack plate 6.7 is fixedly installed on the inner top of the exhaust tank 1, and the second net rack plate 6.7 is located directly above the fiber filter material layer 6.5.

[0028] More specifically, the air diffuser ring 7 is composed of a branch pipe 7.1, a ring pipe 7.2 and an air outlet pipe 7.3, one end of the branch pipe 7.1 is fixedly installed on the top of the exhaust tank 1, the ring pipe 7.2 is fixedly installed on the other end of the branch pipe 7.1, and the air outlet pipe 7.3 is fixedly installed on the ring pipe 7.2; the circulating assembly 8 comprises a first electric valve 8.1, a circulating pipe 8.2, a second electric valve 8.3 and a circulating fan 8.4, wherein the first electric valve 8.1 is fixedly installed on the end of the air outlet pipe 7.3 away from the ring pipe 7.2, the top of the circulating pipe 8.2 is fixedly installed on the air outlet pipe 7.3, the circulating pipe 8.2 is used for detecting unqualified VOCS exhaust gas, and the unqualified VOCS exhaust gas enters the exhaust tank 1 through the circulating fan 8.4, the bottom of the circulating pipe 8.2 is fixedly installed on the bottom of the exhaust tank 1, the second electric valve 8.3 is fixedly installed on the circulating pipe 8.2, one end of the circulating fan 8.4 is fixedly installed on the circulating pipe 8.2, and the other end of the circulating fan 8.4 is fixedly installed on the circulating pipe 8.2.

[0029] Further, the VOCS exhaust gas enters from the upper inlet pipe 2.1, enters the inlet cone box 2, is intercepted by the coarse particle interception layer 2.3 and the fine particle interception layer 2.4, enters the conveying pipe 3 from the lower inlet pipe 2.2, enters the dispersion pipe 4 from the conveying pipe 3, and is dispersed from the dispersion holes 5 of the dispersion pipe 4.

[0030] The VOCS exhaust gas is effectively filtered by the ceramic particle layer 6.2, the zeolite particle layer 6.3, the granular activated carbon layer 6.4, the fiber filter material layer 6.5 and the filter cloth 6.6, so as to avoid air pollution. After the evolution of the VOCS exhaust gas is completed, the VOCS exhaust gas enters the annular pipe 7.2 from the branch pipe 7.1, enters the outlet pipe 7.3 from the annular pipe 7.2, and is discharged. When the discharged VOCS exhaust gas is detected to be unqualified, the first electric valve 8.1 is closed, the second electric valve 8.3 is opened, the VOCS exhaust gas enters the circulating pipe 8.2, the circulating fan 8.4 makes the VOCS exhaust gas in the circulating pipe 8.2 enter the inner bottom of the exhaust gas tank 1, and the VOCS exhaust gas is filtered again by the ceramic particle layer 6.2, the zeolite particle layer 6.3, the granular activated carbon layer 6.4 and the fiber filter material layer 6.5 until the filtering is completed.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for treating VOCs exhaust gas, characterized in that, The utility model provides waste gas tank (1), intake cone box (2), conveying pipe (3), dispersion pipe (4), air diffuser (5), filter core assembly (6), air diffuser ring (7) and circulation assembly (8) including, wherein, intake cone box (2) fixed mounting is in the inner top of waste gas tank (1), the top fixed mounting of conveying pipe (3) is in the bottom of intake cone box (2), dispersion pipe (4) fixed mounting is in the bottom of conveying pipe (3), air diffuser (5) is set up on dispersion pipe (4), filter core assembly (6) fixed mounting is in the inside of intake cone box (2), air diffuser ring (7) fixed mounting is in the top of waste gas tank (1), the top fixed mounting of circulation assembly (8) is on air diffuser ring (7), the bottom fixed mounting of circulation assembly (8) is in the bottom of waste gas tank (1).

2. A VOCs exhaust treatment device according to claim 1, wherein The top of intake cone box (2) is fixedly provided with upper inlet pipe (2.1), the top of upper inlet pipe (2.1) extends out of the top of waste gas tank (1), the bottom of intake cone box (2) is fixedly provided with lower inlet pipe (2.2), and the bottom of lower inlet pipe (2.2) is fixedly installed on the top of conveying pipe (3).

3. The VOC exhaust treatment device of claim 1, wherein, The inside of intake cone box (2) is fixedly provided with a coarse particle interception layer (2.3), and the inside of intake cone box (2) is fixedly provided with a fine particle interception layer (2.4), wherein the coarse particle interception layer (2.3) is located directly below the fine particle interception layer (2.4).

4. The VOC exhaust treatment device of claim 1, wherein, It also includes a flange (9) fixedly installed on the end of the upper inlet pipe (2.1), the lower inlet pipe (2.2) and the conveying pipe (3).

5. The VOC exhaust treatment device of claim 1, wherein, The filter core assembly (6) includes a first net rack plate (6.1), a ceramic particle layer (6.2), a zeolite particle layer (6.3), a granular activated carbon layer (6.4) and a fiber filter material layer (6.5), wherein the first net rack plate (6.1) is fixedly installed on the inner bottom of the waste gas tank (1), the ceramic particle layer (6.2) is fixedly installed directly above the first net rack plate (6.1), the zeolite particle layer (6.3) is fixedly installed directly above the ceramic particle layer (6.2), the granular activated carbon layer (6.4) is fixedly installed directly above the zeolite particle layer (6.3), and the fiber filter material layer (6.5) is fixedly installed directly above the granular activated carbon layer (6.4).

6. A VOCs exhaust treatment device according to claim 5, wherein The filter core assembly (6) further includes a filter cloth (6.6) and a second net rack plate (6.7), the filter cloth (6.6) is located between the ceramic particle layer (6.2), the zeolite particle layer (6.3), the granular activated carbon layer (6.4) and the fiber filter material layer (6.5), and the second net rack plate (6.7) is fixedly installed on the inner top of the waste gas tank (1), and the second net rack plate (6.7) is located directly above the fiber filter material layer (6.5).

7. The VOC exhaust treatment device of claim 1, wherein, The air diffusing ring (7) is composed of a branch pipe (7.1), a ring pipe (7.2) and an air outlet pipe (7.3), one end of the branch pipe (7.1) is fixedly installed on the top of the exhaust tank (1), the ring pipe (7.2) is fixedly installed on the other end of the branch pipe (7.1), and the air outlet pipe (7.3) is fixedly installed on the ring pipe (7.2).

8. The VOC exhaust treatment device of claim 1, wherein, The circulating assembly (8) comprises a first electric valve (8.1), a circulating pipe (8.2), a second electric valve (8.3) and a circulating fan (8.4), wherein the first electric valve (8.1) is fixedly installed on the end of the air outlet pipe (7.3) away from the ring pipe (7.2), the top of the circulating pipe (8.2) is fixedly installed on the air outlet pipe (7.3), the bottom of the circulating pipe (8.2) is fixedly installed on the bottom of the exhaust tank (1), the second electric valve (8.3) is fixedly installed on the circulating pipe (8.2), one end of the circulating fan (8.4) is fixedly installed on the circulating pipe (8.2), and the other end of the circulating fan (8.4) is fixedly installed on the circulating pipe (8.2).

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